Miles between Thornton, CO and Pleasanton, CA

There are
1,250 mi
from Thornton, CO to Pleasanton, CA

That's the driving distance. It would take 21 hours 26 mins to go from Thornton, Colorado to Pleasanton, California.

The flight distance (direct flight from Thornton, CO to Pleasanton, CA) is 921.84 mi.

1,250 mi = 1.61 kms